Set up Handwashing on Apple Watch
Your Apple Watch can detect when you start washing and encourage you to keep going for 20 seconds, the time recommended by global health organizations.
Turn on Handwashing
Open the Settings app on your Apple Watch.
Tap Handwashing, then turn on Handwashing Timer.
When Apple Watch detects that you’ve started washing your hands, it starts a 20-second timer. If you stop washing in less than 20 seconds, you’re encouraged to finish the job.
Note: On an Apple Watch set up for a family member, you can also turn on handwashing reminders. Open the Settings app on the managed Apple Watch, tap Handwashing, turn on Handwashing Timer, then turn on Handwashing Reminders.
To see a report of your average handwashing times, open the Health app on your iPhone, go to Browse > Other Data, then tap Handwashing.